Key result
The regression of %HRR versus %VO2R during treadmill exercise was significantly closer to the line of identity than %HRR versus %VO2max (P < 0.001), indicating %HRR is an indicator of %VO2R.
Cross-Sectional (n=50)
p-value: p=< 0.001
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Supports revising %HRR equivalence assumptions for treadmill; leaves open prospective validation before practice change.
Swain et al. (1998) reported a cross-sectional. Treadmill exercise (%HRR vs %VO2R) vs. %HRR vs %VO2max was evaluated on Closeness of linear regression to the line of identity (p=< 0.001). The regression of %HRR versus %VO2R during treadmill exercise was significantly closer to the line of identity than %HRR versus %VO2max (P < 0.001), indicating %HRR is an indicator of %VO2R.